Hello, On Ubuntu 12.04 (64 bit ) i have installed ROS Groovy and packages: https ://raw.github.com/ipa320/schunkrobots/groovydev/groovy.rosinstall and ipacanopentutorials.

After lauching file i get this output :

canopenros: /usr/include/boost/smartptr/sharedptr.hpp:418: T* boost::sharedptr::operator->() const [with T = const urdf::Joint]: Assertion `px != 0' failed.